[3] It was opened in 18 December 2020 as a part of Line 17 Phase 1.
On September 17, 2023, original Line 17 Phase 1: (Jinxing - Jitouqiao) splits into Line 19 Phase 1: (Jinxing - Jiujiang North) and new Line 17: (Jiujiang North - Jitouqiao), and 4-Car A-Train starts operation on Line 17.
[4][5] Line 19 Phase 2 will have local and express services.
It will connect Chengdu Tianfu International Airport and Chengdu Shuangliu International Airport with direct express service.
[6] Phase 2 has opened on 28 November 2023, of which Tianfu station will only provide interchange with line 18,[7] and will be fully open when Tianfu railway station of China Railway opens.